an even better way than that is to use the pantsir s1. try to lock on the helicopter while also shooting a bit at them, wait until it is locked, spam all of your rocket and it'll be done for (the pantsir has 12 rockets, spammable, the little bird helicopter needs approximately 6 rockets to take down). don't worry if you hadn't completed the quest for it, there are many people who are happy to help players find the pieces on their videos(search up how to get pantsir s1 in war tycoon).
Hk 416 with bronze primary color and polymer secondary color with ironsight and potato grip with laser attachment and muzzle brake feels is the best with good range (pretty long rang - short range) and deals great damage with 800 fire rate. Please try and rate this build!
Honestly unless u have a friend to be the apache’s gunner the ah64 is not so good because of speed, manoeuvrability, lack of machine guns and needing to do a task for it so the little bird is the goat of all non Robux vehicles because of the op MGs and missiles